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Alpine AG-B4FLX8

8" x 25', R-4.2 Insulation, Flexible Ducting

(3 Reviews)

Services

    • Shipping to Canada
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This flexible ducting is manufactured with a galvanized wire helix contained in continuous encapsulating layers of tough polyester film forming a smooth flowing, airtight inner core. The core is surrounded by a thick blanket of fiberglass insulation which is enveloped by a tear-resistant fiberglass scrim. Encasing the entire assembly is a tough, UV-inhibited polyethylene jacket, providing a durable outer vapor barrier.

Standard Features:

  • Maximum velocity: 6000 FPM
  • Maximum positive pressure: 10" W.C.
  • Maximum negative pressure: 1/2" W.C.
  • Operating temperature: -20 to 200°F (Intermittent) / -20 to 180°F (Continuous)
  • Minimum bend radius is equal to the diameter.
  • ETL Listed / Approved
  • Formaldehyde-free fiber glass insulation


Duct Diameter

The interior diameter of the round duct.

Duct Diameter
8 inches

These accessories ship free with freight item in cart.

90 DEGREE REGISTER BOOTS
90 Degree Boot
Alpine 90RB4108

4" x 10" 90° Register Boot, 8" Round Pipe Connection

$5.99 Qty:
90 Degree Boot
Alpine 90RB4128

4" x 12" 90° Register Boot, 8" Round Pipe Connection

$5.99 Qty:
ADJUSTABLE ELBOWS AND ANGLES
90 Degree Elbow
Alpine 90AE824

8" Diameter, 24 Gauge 90° Adjustable Elbow

$10.99 Qty:
90 Degree Elbow
Alpine 90AE830

8" Diameter, 30 Gauge 90° Adjustable Elbow

$6.99 Qty:
DUCT TAKE-OFFS
Duct Collar Side
Alpine AG-CLR8

8" Round Duct Take-Off Collar

$3.99 Qty:
Take Off with Damper
Alpine TOD8

8" Takeoff with Damper

$9.99 Qty:
END BOOTS
End Register Boot
Alpine ERB4108

4" x 10" End Register Boot, 8" Round Pipe Connection

$6.99 Qty:
End Register Boot
Alpine ERB4128

4" x 12" End Register Boot, 8" Round Pipe Connection

$6.99 Qty:
MISCELLANEOUS DUCTING SUPPLIES
zip ties
Bay State Cable Ties B36H9L

36" Ties 175lb - 50 Pack

$9.99 Qty:
STRAIGHT BOOTS
Straight Boot
Alpine SRB4108

4" x 10" Straight Register Boot, 8" Round Pipe Connection

$5.99 Qty:
Straight Boot
Alpine SRB4128

4" x 12" Straight Register Boot, 8" Round Pipe Connection

$5.99 Qty:
TOOLS
640-UL25
Diversitech 640-UL25

Diversitech 640-UL25 Foil Tape

$17.99 Qty:
Product Image
Malco FDC2

Flex Duct Shears

$38.99 Qty:



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